Useful console commands

1. Start up Call of Duty 4: Modern Warfare Multiplayer and select Options



2. Select Game Options



3. Select Enable Console and make sure it shows "Yes"



Now you can press the tilde key ~ to show the console.

Netcode commands

• if set to 0, there weill be no cap, though this setting can get you kicked from servers

• essentially the update frequency of the client

Change field of view


Sources:

http://www.funender.com/quake/console/q3connection.html
http://wiki.modsrepository.com/index.php?title=Call_of_Duty_:_A_Study_on_FPS
https://linustechtips.com/main/topic/246033-truth-about-91-fps-in-the-new-call-of-duty/
https://steamcommunity.com/app/7940/discussions/0/528398719800788355/?ctp=2#c527273452881706687

Thanks to Cucurbito for linking new information regarding max fps and max packets.